Feed mechanism for saw-tables



(No Model.)

G R. MORGAN..

FEED -MBGHANISM POR SAW TABLES.

No. 397,930. WN!

WIT/VESSEL?,

N. Prlzns, maxaman-pm wnhmgmmno vNTTED STATES PATENT OFFICE.

(IYIARLES R. MORGAN, OF AKRON, OHIO.

FEED MECHANISM FOR SAW-TABLES.

SPECIFICATION forming part of Letters Patent N o. 397,930, dated February 19, 1889.

Serial No. 272,341. (No model.)

To @ZZ whom it 71mg/ concern:

Be it known that I, CHARLES R. MORGAN, of Akron, in the county of Summit and State of Ohio, haveinvented certain new and useful Improvements in Feed Mechanism for Saw- Tablcs; and I do hereby declare the followingv to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use the same.

My invention relates to improvements in feed mechanism for saw-tables; and it consists in certain features of construction and in combination of parts hereinafter described, and pointed out in the claims.

In the accompanying drawings, Figure 1 is a plan. Fig. 2 is a side elevation in section on the line a; at, Fig. 1. Fig. 3 is an end elevation, partly in section, on line y y, Fig. '1.

A represents the saw-table, including a suitable supporting-frame; a, a circular saw, and a the gage, which, together with saw-mandrel, driving-pulley, dto., may all be of ordinary construction.

B is a metal sleeve in horizontal position and located crosswise and a few inches above the saw-table, the sleeve having a depending arm or fiange, B, the latter being secured to the one end of the saw-table frame and on the side thereof opposite the saw. lIn the bore of sleeve B is journaled shaft B2, the latter having a small head or collar, B3, that operates in the counterbore of the sleeve, the head or collar abutting shoulder b. On this shaft are mounted sprocket-wheels b and b2, the hub of the latter abutting the end of sleeve B, by which arrangement of parts shaft B2 is held endwise. On sleeve B is loosely mounted the one end of frame C. This frame is in two sections, respectively, C and O', the two sections being jointed at c, the adjacent ends of the two sections overlapping each other and secured by suitable bolt, pin, or stud, as the case may be, the axial line ef the joint being crosswise of the table. Boxes d d and d d are mounted on the respective framesections C and C', the securing-bolts of these boxes passing through slots c of the framesections, by means of which the boxes are adjustable lengthwise of these frame-sections.

In these boxes are respectively journaled shafts D and D. 'lhe boxes of both of these shafts, it will be observed, are located some distance from the ends or joints of the frame, so that in ease it is ever desirable to remove a section of the frame the shaft will not be in position to drop out of place, but, instead, will retain its former position. On the one end of these shafts and in line with the saw are feed-rollers E and E, and on the other end of these shafts are mounted sprocket-wheels e e, the latter being in line with sprocketwheels b', with endless chain F, connecting these three sprocket-wheels. By adjustingl boxes d (l and d d the stretch and wear of the chain may be taken up and the chain kept sufficiently taut for practical purposes, and the alignment of the feed-rollers may be adjusted as desired.

In place of sprocketwlreels and endless chain thereon for driving the feed-rolls, belts and pulleys or other power transmitting mechanism may be substituted, if preferred. Sprocket-wheel b2 is intended to receive an endless chain for driving the feed mechanism. Feed-roller E may have sharp teeth, and of such narrow face that the saw-kerf will cut away any marks left on the lumber by this feed-roll. Roller E should have a broader face, and may have serrated or smooth face, according as the lumber being slitted is rough or dressed, and it would be well to have two or more sets of feedrollers, respectively, with rough and smooth surfaces adapted to different kinds of work and made interchangeable and easily detachable from shafts D and D. Roller E may have a circumferential external flange, E2, to follow in the saw-kerf to serve as a spreader to help guide the lumber. Frame C O' being, as aforesaid, jointed in the middle and pivotally connected with the saw-table, can adjust itself vertically to accommodate the thickness of lumber, the weight of the frame and attachments being sufficient to hold the feed-rollers with sufficient force upon the surface of the lumber. Frame-sections C and C are provided with vertically-adjusting screws H. The lower ends of these screws abut the table, and the upper ends of the screws are usually provided with thumb-pieces or small bami-wheels Vfor turningl these screws. By adjusting these screws up or down the frame is held in position with the :feed-rolls elevated from the table a suilieient distance to approximately accommodate the thickness of the lumber, so that when the rollers pass ofi from a pieee ot lumber they will only descend a short distanee-perhalvis au eighth of an inch, more or lessand will consequently be in position to readily mount the next piece of lumber.

The hubs of sprocket-wheels e e are made to abut the end of the adjacent boxes, and shafts D D are provided with collars Ds next inside these boxes, by which arrangement of parts these shafts are held endwise. The jointed frame is readily detachable from the sawtable, and may be removed bodily when not wanted by removing;` key D", that holds the frame ou sleeve B, and then slipping,l the frame endwise from oft' the sleeve. The operator has only to adjust gage rt according to the width of lumber wanted and insert the plank or board under roller E, after which the feed-rollers will take care of the lumber, leaving the operator free to handle the next piece oi lumber, thus saving much time and saving the labor of one man over the old method oi' feeding' by hand.

The lumber during the slitting operation being` held upon the table by the feed-rolls and beingl fed 1u1iformly,and the operator to the table, shafts jourualed in each section Y away from lthe joining-point, and rollers on said shafts, substantially as set forth.

2. The combination, with upright arm Arigidly connected with the saw-table, said arm bein g integral with au overh anging sleeve extending crosswise of the table, of jointed frame removably mounted on the said sleeve, and feed mechanism j ourn aled in said jointed frame, substantially as set forth.

S. The combination, with upright arm, a lateraliy-projectn g sleeve integral therewith, a jointed frame mounted on the sleeve, and feed mechanism journaled in said jointed frame, of a shaft journaled in the bore oi' such sleeve, said shaft bei ng operatively conn ected with the feed mechanism and with the jointed frame, substantially as set forth.

In testimony whereof I sign this specification, in the presence of two witnesses, this 31st day of December, 1887.

CHARLES R. MORGAN.

\Vitnesses:

Crus. H. Doi'ucn, ALBERT LYNCH. 

